Several top Republican donors have given hefty contributions this election cycle — just not to the top of the GOP ticket.

An ABC News analysis of several of Mitt Romney’s top donors in 2012 revealed that they have so far declined to donate to Donald Trump’s campaign, joint victory fund, or super PACs backing him, instead shifting their contributions to congressional re-election campaigns.

Hedge fund manager Paul Singer, an outspoken critic of Trump, donated $1 million to Restore Our Future, the super PAC that backed Romney in 2012, and $5 million this election cycle to Conservative Solutions, a super PAC supporting Florida Sen. Marco Rubio.

Singer, who earlier this summer said Trump’s economic policies could cause a “global depression,” also gave $2.5 million to Our Principles PAC, intended to stop Trump from winning the GOP nomination.